<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    async function async1() {
        console.log(1)
        await async2()
        console.log(2)
    }

    async function async2() {
        console.log(3)
    }

    console.log(4)

    setTimeout(function () {
        console.log(5)
    })

    async1()

    new Promise((resolve) => {
        console.log(6)
        resolve()
    }).then(() => {
        console.log(7)
    })

    console.log(8)

    // 4 1 3 6 8 2 7 5
</script>
</body>
</html>